alt Hacker NewsPretty much this. The less software on the car, the fewer problems.
It's practically impossible to test every permutation of code against every system. Maybe AI can help, but practically it'll just mean the software gets more complicated, with more features. And to top it all off, more and more features get regulated, so they have to be there. The rear-view camera requirement in particular, since you need a screen to see the output. And if you have a screen... well it's an already paid cost, so, might as well display other things too.
We should kill the reg.
It all comes down to cost. At scale, testing hardware is appreciably more expensive than testing software. The former requires specialized machinery that costs the soul of your firstborn, and the logistics overhead for each do-over means long iteration times. The latter can be done with a CI pipeline for pennies worth of compute in a fraction of a working day.